Mrs. Rowan allotted 30 minutes at the
beginning of class for her students to
complete an exam. The last student took
42 minutes to complete the exam. What
is Mrs. Rowan's percent error?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label